Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Keep 2 Networks Seperate on an ASA 5505???

Hello, I'm new to Networking and Firewalls.  But I have what I hope is an easy question to answer.

1. I currently have a Comcast Business Class Gateway, Cisco 2100 Series WLAN Controller and a Cisco ASA 5505 all connected together to supply LAN and WLAN internet connections on my network.

2.  I also have a Card Access Security System on it owns network.  It currently does not have internet access.

I would like to put my security system on the internet so that I can support it remotely.  To do this, it has to be on a firewalled internet connection.

My question is;

Can  I put the two networks on my ASA 5505 and keep them seperate?  I don't want to provide a path into the Security System through my current LAN & WLAN.  But I do need a frewalled internet connection on my Security System.  I am trying to avoid purchasing a seperate firewall.

Thanks for any comments of feedback.

Everyone's tags (4)
1 REPLY
Cisco Employee

Keep 2 Networks Seperate on an ASA 5505???

Hello,

What license do you have on the ASA firewall? Basically by default you have 2 interfaces and a restricted DMZ, that would do it.

You can add a third interface with a security level of 100,  then Create a NAT translation and only allowed certain services/IPs to access then from the outside, something like this,

Interface vlan 3

ip address 10.1.1.1 255.255.255.0

nameif Security_System

security-level 100

Interface eth0/3

switchport access vlan 3

Then assigned an IP address to that system, create a NAT translation and an access list and that will do it.

Mike

Mike
408
Views
0
Helpful
1
Replies
CreatePlease login to create content